Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS6994711 B2
Publication typeGrant
Application numberUS 10/102,154
Publication dateFeb 7, 2006
Filing dateMar 19, 2002
Priority dateMar 10, 1998
Fee statusPaid
Also published asCA2349023A1, CA2349023C, DE60134513D1, EP1159922A2, EP1159922A3, EP1159922B1, US6379374, US7556631, US20020151915, US20050131455
Publication number10102154, 102154, US 6994711 B2, US 6994711B2, US-B2-6994711, US6994711 B2, US6994711B2
InventorsGrant Hieshima, Robert Lulo
Original AssigneeCordis Corporation
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Small diameter embolic coil hydraulic deployment system
US 6994711 B2
Abstract
A medical device for placing a very small embolic coil at a preselected location within a vessel comprising a positioning catheter having a distal tip for retaining a headpiece with an attached embolic coil such that when the catheter is pressurized with a fluid the distal tip of the catheter expands outwardly to release the headpiece and coil at the preselected position.
Images(3)
Previous page
Next page
Claims(14)
1. A small diameter vasoocclusive coil deployment system for use in placing a coil at a preselected site within a vessel comprising:
an elongated flexible catheter having a lumen extending therethrough so as to define an outer wall and having a proximal section and a distal section;
an embolic coil assembly comprised of a helically wound flexible coil having proximal and distal ends and a cylindrical headpiece having proximal and distal sections, the distal section of the headpiece is disposed within the proximal end of the coil and the proximal section of the headpiece extends outwardly beyond the proximal end of the coil, said proximal section of the cylindrical headpiece having a diameter approximately equal to the diameter of the lumen of the catheter and said proximal section of said cylindrical headpiece being disposed in fluid-tight engagement within the lumen of the distal section of the catheter; and,
a syringe coupled to the proximal section of the catheter for applying a fluid pressure to the interior of the catheter to thereby cause the cylindrical headpiece to be released from the lumen of the catheter to thereby deploy the embolic coil assembly.
2. A vasoocclusive coil deployment system as defined in claim 1, wherein said proximal section of said catheter is formed of a material which is sufficiently flexible to be passed through the vasculature of the body.
3. A vasoocclusive coil deployment system as defined in claim 1, wherein the helically wound coil has an outside diameter which is approximately equal to an outside diameter of the catheter to thereby provide a coil deployment system of a uniform outside diameter.
4. A vasoocclusive coil deployment system as defined in claim 3, wherein the distal section of the catheter is formed of a polymer having a durometer in a range of between 25D and 55D.
5. A vasoocclusive coil deployment system as defined in claim 3, wherein the distal section of the catheter is formed of a polymer having a durometer of about 45D.
6. A small diameter vasoocclusive coil deployment system for use in placing a coil at a preselected site within a vessel comprising:
an elongated flexible catheter having a lumen extending therethrough so as to define an outer wall and having a proximal section and a distal section;
an embolic coil assembly comprised of a flexible coil having proximal and distal ends and a cylindrical headpiece having proximal and distal sections, the distal section of the headpiece is disposed within the proximal end of the coil and the proximal section of the headpiece extends outwardly beyond the proximal end of the coil, said proximal section of the cylindrical headpiece having a diameter approximately equal to the diameter of the lumen of the catheter and said proximal section of said cylindrical headpiece being disposed in fluid-tight engagement within the lumen of the distal section of the catheter; and,
a connector coupled to the proximal section of the catheter and adapted for coupling a source of fluid pressure to the interior of the catheter to thereby cause the cylindrical headpiece to be released from the lumen of the catheter to thereby deploy the embolic coil assembly.
7. A vasoocclusive coil deployment system as defined in claim 6, wherein said proximal section of said catheter is formed of a material which is sufficiently flexible to be passed through the vasculature of the body.
8. A vasoocclusive coil deployment system as defined in claim 6, wherein the coil has an outside diameter which is approximately equal to an outside diameter of the catheter to thereby provide a coil deployment system of a uniform outside diameter.
9. A small diameter vasooclusive coil deployment system for use in placing a coil at a preselected site within a vessel comprising:
an elongated flexible catheter having a lumen extending therethrough and having a proximal section and a distal section;
an embolic coil assembly comprised of a flexible coil having proximal and distal ends and a cylindrical headpiece having proximal and distal sections, the distal section of the headpiece is disposed within the proximal end of the coil and the proximal section of the headpiece extends outwardly beyond the proximal end of the coil, said proximal section of the cylindrical headpiece having a diameter approximately equal to the diameter of the lumen of the catheter and said proximal section of said cylindrical headpiece being disposed in fluid-tight engagement with the lumen of the distal section of the catheter; and,
a syringe coupled to the proximal section of the catheter for applying a fluid pressure to the interior of the catheter to thereby release the embolic coil.
10. A vasoocclusive coil deployment system as defined in claim 9, wherein said proximal section of said catheter is formed of a material which is sufficiently flexible to be passed through the vasculature of the body.
11. A vasoocclusive coil deployment system as defined in claim 9, wherein the coil has an outside diameter which is approximately equal to an outside diameter of the catheter to thereby provide a coil deployment system of a uniform outside diameter.
12. A small diameter embolic device deployment system for use in placing a coil at a preselected site within a vessel comprising:
an elongated flexible catheter having a lumen extending therethrough so as to define an outer wall and having a proximal section and a distal section;
an embolic device including a cylindrical headpiece, the cylindrical headpiece having a diameter approximately equal to the diameter of the lumen of the catheter and said cylindrical headpiece being disposed in fluid-tight engagement with the lumen of the distal section of the catheter; and,
a source of fluid pressure coupled to the proximal section of the catheter for applying a fluid pressure to the interior of the catheter to thereby deploy the embolic coil assembly.
13. An embolic device deployment system as defined in claim 10, wherein said proximal section of said catheter is formed of a material which is sufficiently flexible to be passed through the vasculature of the body.
14. An embolic device deployment system as defined in claim 12, wherein the embolic device has an outside diameter which is approximately equal to an outside diameter of the catheter to thereby provide an embolic device deployment system of a uniform outside diameter.
Description
CROSS-REFERENCE TO RELATED APPLICATION

This patent application is a continuation of U.S. patent application Ser. No. 09/580,684, filed on May 30, 2000, entitled, “Small Diameter Embolic Coil Hydraulic Deployment System,” now U.S. Pat. No. 6,379,374, which is a continuation-in-part of U.S. patent application Ser. No. 09/177,848, filed on Oct. 22, 1998, entitled, “Embolic Coil Hydraulic Deployment System,” now U.S. Pat. No.6,113,622, which is Nonprovisional Patent Application of U.S. patent application Ser. No. 60/077,468 filed on Mar. 10, 1998.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a medical device for placing an embolic coil at a preselected location within a vessel of the human body, and more particularly, relates to a very small diameter catheter having a distal tip for retaining an embolic coil in order to transport the coil to a preselected position within the vessel and a control mechanism for releasing the embolic coil at the preselected position. This device is particularly suited to transport an embolic coil through the tortuous vasculature of the human brain.

2. Description of the Prior Art

For many years flexible catheters have been used to place various devices within the vessels of the human body. Such devices include dilatation balloons, radiopaque fluids, liquid medications and various types of occlusion devices such as balloons and embolic coils. Examples of such catheter devices are disclosed in U.S. Pat. No. 5,108,407, entitled “Method And Apparatus For Placement Of An Embolic Coil”; U.S. Pat. No. 5,122,136, entitled, “Endovascular Electrolytically Detachable Guidewire Tip For The Electroformation Of Thrombus In Arteries, Veins, Aneurysms, Vascular Malformations And Arteriovenous Fistulas.” These patents disclose devices for delivering embolic coils to preselected positions within vessels of the human body in order to treat aneurysms, or alternatively, to occlude blood vessels at a particular location.

Coils which are placed in vessels may take the form of helically wound coils, or alternatively, may be random wound coils, coils wound within coils or many other such coil configurations. Examples of various coil configurations are disclosed in U.S. Pat. No. 5,334,210, entitled, “Vascular Occlusion Assembly; U.S. Pat. No. 5,382,259, entitled, “Vasoocclusion Coil With Attached Tubular Woven Or Braided Fibrous Covering.” Embolic coils are generally formed of a radiopaque metallic materials, such as platinum, gold, tungsten or alloys of these metals. Often times several coils are placed at a given location in order to occlude the flow of blood through the vessel by promoting thrombus formation at the particular location.

In the past, embolic coils have been placed within the distal end of the catheter. When the distal end of the catheter is properly positioned the coil may then be pushed out of the end of the catheter with a guidewire in order to release the coil at the desired location. This procedure of placement of the embolic coil is conducted under fluoroscopic visualization such that the movement of the coil through the vasculature of the body may be monitored and the coil may be placed in the desired location. With these placements systems there is very little control over the exact placement of the coil since the coil may be ejected to a position some distance beyond the end of the catheter. As is apparent, with these latter systems, when the coil has been released from the catheter it is difficult, if not impossible, to retrieve the coil or to reposition the coil.

Numerous procedures have been developed to enable more accurate positioning of coils within a vessel. Still another such procedure involves the use of a glue or solder for attaching the embolic coil to a guidewire, which is in turn, placed within a flexible catheter for positioning the coil within the vessel at a preselected position. Once the coil is at the desired position, the coil is held in position by the catheter and the guidewire is pulled from the proximal end of the catheter to thereby cause the coil to become detached from the guidewire and released from the catheter. Such a coil positioning system is disclosed in U.S. Pat. No. 5,263,964, entitled, “Coaxial Traction Detachment Apparatus And Method.”

Another coil positioning system utilizes a catheter having a socket at the distal end of the catheter for retaining a ball which is bonded to the proximal end of the coil. The ball, which is larger in diameter than the outside diameter of the coil, is placed in a socket within the lumen at the distal end of the catheter and the catheter is then moved into a vessel in order to place the coil at a desired position. Once the position is reached, a pusher wire with a piston at the end thereof is pushed distally from the proximal end of the catheter to thereby push the ball out of the socket in order to thereby release the coil at the desired position. Such a system is disclosed in U.S. Pat. No. 5,350,397, entitled, “Axially Detachable Embolic Coil Assembly.” One problem with this type of coil placement system which utilizes a pusher wire which extends through the entire length of the catheter and which is sufficiently stiff to push an attachment ball out of engagement with the socket at the distal end of the catheter is that the pusher wire inherently causes the catheter to be too stiff with the result that it is very difficult to guide the catheter through the vasculature of the body.

Another method for placing an embolic coil is that of utilizing a heat releasable adhesive bond for retaining the coil at the distal end of the catheter. One such system uses laser energy which is transmitted through a fiber optic cable in order to apply heat to the adhesive bond in order to release the coil from the end of the catheter. Such a method is disclosed in U.S. Pat. No. 5,108,407, entitled, “Method And Apparatus For Placement Of An Embolic Coil.” Such a system also suffers from the problem of having a separate fiber optic element which extends throughout the length of the catheter with resulting stiffness to the catheter.

Still another coil deployment system incorporates a catheter having a lumen throughout the length of the catheter and a distal tip for retaining the coil for positioning the coil at a preselected site. The distal tip of the catheter is formed of a material which exhibits the characteristic that when the lumen of the catheter is pressurized the distal tip radially expands to release the coil at the preselected site. Such a deployment system is disclosed in the parent patent application, U.S. patent application Ser. No. 09/177,848, filed on Oct. 22, 1998, and entitled, “Embolic Coil Hydraulic Deployment System,” assigned to the assignee of the present patent application.

SUMMARY OF THE INVENTION

The present invention is directed toward a very small diameter vascular occlusive coil deployment system for use in placing an embolic coil at a preselected site within a vessel which includes a small diameter, flexible catheter having a distal tip for retaining the coil so that the coil may be moved to the preselected site within the vessel. The catheter has a lumen which extends therethrough the length of the catheter and also includes a distal end which is formed of a material having a durometer such that when a fluid pressure of about 300 pounds per square inch (psi) is applied to the interior of the catheter, the walls of the distal tip expand outwardly, or radially, to thereby increase the lumen of the distal tip of the catheter. The embolic coil is disposed upon and bonded to a cylindrical headpiece which has a diameter approximately equal to the diameter of the lumen of the catheter. The headpiece extends outwardly from the proximal end of the coil and this portion of the headpiece is disposed within and retained by the lumen at the distal tip of the catheter. A hydraulic injector, such as a syringe, is coupled to the proximal end of the catheter for applying a fluid pressure to the lumen of the catheter. When the coil is placed at a desired position within a vessel, fluid pressure is applied to the lumen of the catheter by the hydraulic injector to thereby cause the walls of the distal tip to expand outwardly, or radially, to release the headpiece which carries with it the coil. Most importantly, the diameter of the headpiece is approximately equal to or slightly larger, than the diameter of the lumen of the catheter so that when the headpiece 122 is inserted into the distal section of the catheter, the outside diameter of the attached coil 106 is approximately equal to the outside diameter of the catheter. This construction results in a deployment system having an overall outside diameter approximately equal to that of the catheter.

In accordance with another aspect of the present invention, the flexible catheter is comprised of a proximal section and a relatively short distal section. The proximal section is formed of a material which is sufficiently flexible to be passed through the vasculature of the human body and is of a durometer which essentially resists outward expansion when a fluid pressure on the order of about 300 psi is applied to the interior of the catheter. The distal section of the catheter is formed of a material which is also sufficiently flexible to be passed through the vasculature of the body, yet is of a durometer which is significantly lower than the durometer of the proximal section and exhibits the property of expanding outwardly, or radially, when such a fluid pressure is applied to the interior of the catheter to thereby permit the release of the headpiece to thereby release the embolic coil.

In accordance with still another aspect of the present invention, the distal section of the catheter has a durometer in a range of between about 25D and 55D.

In still another aspect of the present invention, the embolic coil is comprised of a helical coil having a proximal end, a distal end, and a lumen extending therethrough. A headpiece is partially disposed within the lumen of the proximal end of the coil and the other portion of the headpiece is placed in fluid-tight engagement with the lumen of the catheter.

In another aspect of the present invention, the hydraulic injector for applying a fluid pressure to the interior of the catheter takes the form of a syringe which is coupled to the proximal end of the catheter for, upon movement of the piston, creating a fluid pressure which is applied to the interior of the catheter to thereby cause the release of the embolic coil.

In accordance with another aspect of the present invention, the embolic coil may take the form of other types of implantable devices, such as a vascular filter.

These aspects of the invention and the advantages thereof will be more clearly understood from the following description and drawings of a preferred embodiment of the present invention:

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an enlarged, partial sectional view of the hydraulic vascular occlusive coil deployment system of the present invention;

FIG. 2 is an enlarged partially sectional view showing the distal end of the coil deployment system prior to deployment of the coil;

FIGS. 3 and 4 illustrate the sequential steps in the radial expansion of the distal tip of the coil deployment system as the embolic coil is released; and,

FIG. 5 illustrates the distal tip of the coil deployment system after release of the embolic coil.

DESCRIPTION OF A PREFERRED EMBODIMENT

FIG. 1 generally illustrates the vascular occlusive coil deployment system 100 which is comprised of a hydraulic injector or syringe 102, coupled to the proximal end of a catheter 104. An embolic coil 106 includes a proximal headpiece 122 which is disposed within the lumen of the distal end 108 of the catheter. The headpiece 122 is tightly held within the lumen of the distal section 108 of the catheter 104 until the deployment system is activated for release of the coil. As may be seen, the syringe 102 includes a threaded piston 110 which is controlled by a handle 112 for infusing fluid into the interior of the catheter 104. Also as illustrated, the catheter 104 includes a winged hub 114 which aides in the insertion of the catheter into the vascular system of the body.

FIG. 2 illustrates in more detail the distal end of the catheter 104. The catheter 104 includes a proximal section 116 and the distal section 108. The embolic coil 106 is tightly wrapped and bonded to the distal portion of a cylindrical headpiece 122. The proximal portion of the headpiece 122 is disposed within the distal section 108 of the catheter and is tightly held within the lumen 120 of this distal section 108 prior to release of the headpiece 122 and attached coil 106. As may be appreciated, FIG. 2 illustrates the vascular occlusive coil deployment system prior to activation of the piston of the syringe and prior to release of the coil.

The embolic coil 106 may take various forms and configurations and may even take the form of a randomly wound coil, however, with the helical wound coil as illustrated in FIG. 2, the coil is provided with a headpiece 122 having a proximal portion which is disposed in a lumen 123 which lumen extends throughout the length of the coil 106. The headpiece 122 serves to retain the coil 106 and also to prevent the flow of fluid through the lumen of the coil 106. When the headpiece 106 is placed in fluid-tight engagement with the lumen 120 the headpiece serves to provide a fluid-tight seal at the distal end of the catheter 104. Adjacent turns of the coil 106 at the proximal end 118 of the coil are preferably continuously welded together and are in turn welded to the headpiece 122 to provide a generally unitary structure. Most importantly, the diameter of the headpiece is approximately equal to or slightly larger, than the diameter of the lumen of the catheter so that when the headpiece 122 is inserted into the distal section of the catheter, the outside diameter of the attached coil 106 is approximately equal to the outside diameter of the catheter. This construction results in a deployment system having an overall outside diameter approximately equal to that of the catheter.

Preferably, the proximal section 116 and the distal section 108 of the catheter 104 are formed of materials having different durometers. The proximal section 116 is preferably formed of Pebax material having a durometer in a range of about 62D to 75D. The proximal section is sufficiently flexible to transverse the vasculature of the human body, but is sufficiently rigid such that when a fluid pressure of approximately 300 psi is applied to the interior of this section of the catheter there is very little, if any, radial expansion of the walls of this section. On the other hand, the distal section 108 of the catheter is preferably formed of polymer material with a relatively low durometer which, exhibits the characteristic that when a fluid pressure of approximately 300 psi is applied to the interior of the catheter the walls of the distal section 108 expand radially, somewhat similar to the action of a balloon inflating, to thereby release the proximal end 118 of the coil 106. As may be appreciated, there are numerous materials which could be used to fabricate the proximal section 116 and distal section 108 of the catheter 104, however, the distal section 108 is preferably formed from a block copolymer such as Pebax having a durometer of between 25D and 55D with a durometer of 40D being the preferred durometer.

FIGS. 3 and 4 generally illustrate the coil release mechanism in action for the vascular occlusive catheter deployment system. More particularly, as shown in FIG. 3, when a hydraulic pressure is applied to the interior 124 of the catheter 104 the relatively low durometer distal section 108 of the catheter begins to expand radially, much as a balloon expands during the process of inflation. As the distal section 108 continues to expand radially there comes a point as illustrated in FIG. 4 in which the headpiece 122 and attached coil 106 becomes disengaged from the lumen of the distal section 108 and the coil is then released from the catheter and is deployed within the vessel.

As illustrated in FIG. 5, when the headpiece 122 and the coil 106 have been released from the catheter 104, the catheter may then be withdrawn leaving the coil positioned at the desired site.

With the vascular occlusive coil deployment system of the present invention it is possible to place an embolic coil very precisely at a desired location within a vessel. Once the coil has been placed in that location by use of the catheter, the catheter may be activated by applying a hydraulic pressure to the interior of the catheter to thereby cause the catheter to release the coil and deposit the coil very accurately at the desired location.

As is apparent, there are numerous modifications of the preferred embodiment described above which will be readily apparent to one skilled in the art, such as many variations and modifications of the coil including numerous coil winding configurations, or alternatively other types of implant devices, such as a vascular filter. Also, there are obviously variations of the syringe arrangement for applying a fluid pressure to the interior of the catheter, including many other fluid pressure generating systems for increasing the pressure within the interior of a catheter in order to cause the distal section of the catheter to expand. These modifications would be apparent to those having ordinary skill in the art to which this invention relates and are intended to be within the scope of the claims which follow.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2853070Oct 4, 1956Sep 23, 1958Julliard MauriceSyringes
US3334629Nov 9, 1964Aug 8, 1967Bertram D CohnOcclusive device for inferior vena cava
US3353718May 24, 1966Nov 21, 1967Fischer & Porter CoSyringe, column or the like
US4512338Jan 25, 1983Apr 23, 1985Balko Alexander BProcess for restoring patency to body vessels
US4734093Nov 10, 1986Mar 29, 1988Sarcem S.A.Remote controlled catheter having a micro-balloon
US4743230Sep 5, 1985May 10, 1988Advanced Cardiovascular Systems, Inc.Inflating and deflating device for balloon dilatation catheters
US4811737Nov 16, 1987Mar 14, 1989Schneider-Shiley (Usa) Inc.Self-purging balloon catheter
US4832692Oct 14, 1986May 23, 1989Cordis CorporationInflation syringe assembly for percutaneous transluminal angioplasty
US4906241Mar 18, 1988Mar 6, 1990Boston Scientific CorporationDilation balloon
US4919121Feb 6, 1989Apr 24, 1990Schneider (Usa) Inc., A Pfizer CompanyInflation device for angioplasty catheter
US4938220Jan 13, 1989Jul 3, 1990Advanced Cardiovascular Systems, Inc.Catheter with split tip marker and method of manufacture
US4994069Nov 2, 1988Feb 19, 1991Target TherapeuticsVaso-occlusion coil and method
US4994071May 22, 1989Feb 19, 1991Cordis CorporationBifurcating stent apparatus and method
US5035705Jul 7, 1989Jul 30, 1991Scimed Life Systems, Inc.Method of purging a balloon catheter
US5108407Jun 8, 1990Apr 28, 1992Rush-Presbyterian St. Luke's Medical CenterMethod and apparatus for placement of an embolic coil
US5122136Mar 13, 1990Jun 16, 1992The Regents Of The University Of CaliforniaEndovascular electrolytically detachable guidewire tip for the electroformation of thrombus in arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas
US5135486Aug 31, 1990Aug 4, 1992Endosonics CorporationSelf-venting balloon dilitation catheter
US5137514Nov 1, 1990Aug 11, 1992Accumed Systems, Inc.Inflation syringe assembly for percutaneous transluminal angioplasty
US5167624Nov 9, 1990Dec 1, 1992Catheter Research, Inc.Embolus delivery system and method
US5168757May 15, 1990Dec 8, 1992Ryder International CorporationFluid displacement and pressurizing device
US5201754Feb 2, 1990Apr 13, 1993C. R. Bard, Inc.Balloon dilatation catheter with varying radiopacity
US5217484Jun 7, 1991Jun 8, 1993Marks Michael PRetractable-wire catheter device and method
US5234437Dec 12, 1991Aug 10, 1993Target Therapeutics, Inc.Detachable pusher-vasoocclusion coil assembly with threaded coupling
US5250071Sep 22, 1992Oct 5, 1993Target Therapeutics, Inc.Detachable embolic coil assembly using interlocking clasps and method of use
US5261916Dec 12, 1991Nov 16, 1993Target TherapeuticsDetachable pusher-vasoocclusive coil assembly with interlocking ball and keyway coupling
US5263964May 6, 1992Nov 23, 1993Coil Partners Ltd.Coaxial traction detachment apparatus and method
US5304195Jan 21, 1993Apr 19, 1994Target Therapeutics, Inc.Detachable pusher-vasoocclusive coil assembly with interlocking coupling
US5312415Sep 22, 1992May 17, 1994Target Therapeutics, Inc.Assembly for placement of embolic coils using frictional placement
US5334210Apr 9, 1993Aug 2, 1994Cook IncorporatedVascular occlusion assembly
US5336183Sep 28, 1993Aug 9, 1994Imagyn Medical, Inc.Inflator
US5342304Oct 12, 1993Aug 30, 1994Advanced Cardiovascular Systems, Inc.Inflation device for dilatation catheters
US5350397Nov 13, 1992Sep 27, 1994Target Therapeutics, Inc.For use in occluding a selected site within a vessel
US5382259Oct 26, 1992Jan 17, 1995Target Therapeutics, Inc.Vasoocclusion coil with attached tubular woven or braided fibrous covering
US5403292May 18, 1994Apr 4, 1995Schneider (Usa) Inc.Thin wall catheter having enhanced torqueability characteristics
US5443478Sep 2, 1992Aug 22, 1995Board Of Regents, The University Of Texas SystemMulti-element intravascular occlusion device
US5470317Aug 2, 1994Nov 28, 1995Design Standards CorporationSwivel barrel assembly for inflation syringe
US5534007May 18, 1995Jul 9, 1996Scimed Life Systems, Inc.Stent deployment catheter with collapsible sheath
US5551954Oct 12, 1994Sep 3, 1996Scimed Life Systems, Inc.Biodegradable drug delivery vascular stent
US5578074Dec 22, 1994Nov 26, 1996Target Therapeutics, Inc.Implant delivery method and assembly
US5582619Jun 30, 1995Dec 10, 1996Target Therapeutics, Inc.Stretch resistant vaso-occlusive coils
US5593412May 2, 1995Jan 14, 1997Cordis CorporationStent delivery method and apparatus
US5601600Sep 8, 1995Feb 11, 1997Conceptus, Inc.Endoluminal coil delivery system having a mechanical release mechanism
US5609608Oct 27, 1995Mar 11, 1997Regents Of The University Of CaliforniaMiniature plastic gripper and fabrication method
US5647847Nov 4, 1994Jul 15, 1997Scimed Life Systems, Inc.Balloon catheter with improved pressure source
US5690667Sep 26, 1996Nov 25, 1997Target TherapeuticsVasoocclusion coil having a polymer tip
US5728065Jun 21, 1996Mar 17, 1998Medtronic, Inc.Self-venting elastomeric balloon catheter
US5772668Jun 7, 1995Jun 30, 1998American Biomed, Inc.Apparatus for placing an endoprosthesis
US5817057Sep 13, 1996Oct 6, 1998Micro Interventional Systems, Inc.Fluid propulsion steerable catheter and method
US5853418Jan 7, 1997Dec 29, 1998Target Therapeutics, Inc.Stretch resistant vaso-occlusive coils (II)
US5895385Nov 6, 1997Apr 20, 1999The Regents Of The University Of CaliforniaEndovascular electrolytically detachable wire and tip for the formation of thrombus in arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas
US5925059Dec 21, 1994Jul 20, 1999Target Therapeutics, Inc.Detachable embolic coil assembly
US5928226Oct 6, 1997Jul 27, 1999The Regents Of The University Of CaliforniaEndovascular electrolytically detachable wire and tip for the formation of thrombus in arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas
US5984929Sep 30, 1997Nov 16, 1999Target Therapeutics, Inc.Fast detaching electronically isolated implant
US6010498Oct 6, 1997Jan 4, 2000The Regents Of The University Of CaliforniaEndovascular electrolytically detachable wire and tip for the formation of thrombus in arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas
US6063100Feb 22, 1999May 16, 2000Cordis CorporationEmbolic coil deployment system with improved embolic coil
US6068644Feb 24, 1999May 30, 2000Cordis CorporationEmbolic coil hydraulic deployment system having improved catheter
US6102932Dec 15, 1998Aug 15, 2000Micrus CorporationIntravascular device push wire delivery system
US6113622Oct 22, 1998Sep 5, 2000Cordis CorporationEmbolic coil hydraulic deployment system
US6117142Feb 25, 1999Sep 12, 2000Cordis CorporationEmbolic coil hydraulic deployment system with improved syringe injector
US6183491Feb 22, 1999Feb 6, 2001Cordis CorporationEmbolic coil deployment system with improved embolic coil
US6238415Mar 3, 1998May 29, 2001Target Therapeutics, IncImplant delivery assembly with expandable coupling/decoupling mechanism
US6254612Aug 25, 1999Jul 3, 2001Cordis Neurovascular, Inc.Hydraulic stent deployment system
US6361547Aug 17, 2000Mar 26, 2002Cordis CorporationEmbolic coil hydraulic deployment system
US6379374May 30, 2000Apr 30, 2002Cordis Neurovascular, Inc.Small diameter embolic coil hydraulic deployment system
DE19547617C1Dec 20, 1995Sep 18, 1997Malte NeusAppliance for inserting and replacing surgical implant
EP0717969A2Dec 19, 1995Jun 26, 1996Target Therapeutics, Inc.Implant delivery assembly with expandable coupling/decoupling mechanism
EP0739607A2Apr 26, 1996Oct 30, 1996Target Therapeutics, Inc.Delivery catheter for electrolytically detachable implant
EP0829236B1Sep 13, 1993Jul 25, 2001Target Therapeutics, Inc.Detachable embolic coil assembly
EP0941700A1Mar 9, 1999Sep 15, 1999Cordis CorporationHydraulically detachable embolic coil assembly
WO1998002100A1Jul 15, 1997Jan 22, 1998Anson Medical LtdSurgical implants and delivery systems therefor
WO1999009895A1Aug 27, 1998Mar 4, 1999Boston Scient LtdFast-detaching electrically insulated implant
Non-Patent Citations
Reference
1Brochure entitled, "Basix25(TM) Inflation Device," by Merit Medical Systems, Inc.
2Brochure entitled, "Detachable Coil System," by Cook.
3Brochure entitled, "Guglielmi Detachable Coils, " by Boston Scientific.
4Brochure entitled, "MonarchAP(R) Inflation Device," by Merit Medical Systems, Inc.
5European Search Report EP 00307318.6 dated Dec. 5, 2002.
6European Search Report EP 01304713.9 dated May 20, 2003.
7Label of B. Braun Inflation Device Kit by Braun Medical, Inc.
8Label of IDC-18 Interlocking Detachable Coil by Target Therapeutics, Inc.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7451765 *Jul 1, 2005Nov 18, 2008Mark AdlerIntra-bronchial apparatus for aspiration and insufflation of lung regions distal to placement or cross communication and deployment and placement system therefor
US7670353Jun 12, 2006Mar 2, 2010Codman & Shurtleff, Inc.Modified headpiece for hydraulic coil deployment system
US7708754May 30, 2007May 4, 2010Codman & Shurtleff, PcStretch resistant embolic coil delivery system with mechanical release mechanism
US7708755Jun 20, 2007May 4, 2010Codman & Shurtleff Inc.Stretch resistant embolic coil delivery system with combined mechanical and pressure release mechanism
US7766935Nov 17, 2006Aug 3, 2010Codman & Shurtleff, Inc.Modified headpiece for hydraulic coil deployment system
US7780695 *Jun 30, 2005Aug 24, 2010Codman & Shurtleff, Inc.Chemically based vascular occlusion device deployment
US7799052Jun 21, 2006Sep 21, 2010Codman & Shurtleff, Inc.Stretch resistant embolic coil delivery system with mechanical release mechanism
US7811305Mar 31, 2006Oct 12, 2010Codman & Shurtleff, Inc.Stretch resistant embolic coil delivery system with spring release mechanism
US7819891Mar 31, 2006Oct 26, 2010Codman & Shurtleff, Inc.Stretch resistant embolic coil delivery system with spring release mechanism
US7819892Sep 29, 2006Oct 26, 2010Codman & Shurtleff, Inc.Embolic coil delivery system with spring wire release mechanism
US7985238Jun 21, 2006Jul 26, 2011Codman & Shurtleff, Inc.Embolic coil delivery system with spring wire release mechanism
US8062325Jul 31, 2006Nov 22, 2011Codman & Shurtleff, Inc.Implantable medical device detachment system and methods of using the same
US8142471Mar 25, 2008Mar 27, 2012Codman & Shurtleff, Inc.Small diameter deployment system with improved headpiece
US8206413Jul 19, 2010Jun 26, 2012Codman & Shurtleff, Inc.Chemically based vascular occlusion device deployment
US8366720Jul 31, 2006Feb 5, 2013Codman & Shurtleff, Inc.Interventional medical device system having an elongation retarding portion and method of using the same
Classifications
U.S. Classification606/108
International ClassificationA61M29/00, A61B17/08, A61B17/12, A61F11/00, A61M25/12, A61F2/82, A61B17/00
Cooperative ClassificationA61B2017/12081, A61B2017/00539, A61B17/1214, A61B17/12022
European ClassificationA61B17/12P7C, A61B17/12P
Legal Events
DateCodeEventDescription
Mar 13, 2013FPAYFee payment
Year of fee payment: 8
Jul 31, 2009ASAssignment
Owner name: CODMAN & SHURTLEFF, INC., MASSACHUSETTS
Free format text: MERGER;ASSIGNOR:CORDIS NEUROVASCULAR, INC.;REEL/FRAME:023032/0233
Effective date: 20081216
Owner name: CODMAN & SHURTLEFF, INC.,MASSACHUSETTS
Free format text: MERGER;ASSIGNOR:CORDIS NEUROVASCULAR, INC.;US-ASSIGNMENT DATABASE UPDATED:20100504;REEL/FRAME:23032/233
Free format text: MERGER;ASSIGNOR:CORDIS NEUROVASCULAR, INC.;US-ASSIGNMENT DATABASE UPDATED:20100525;REEL/FRAME:23032/233
Free format text: MERGER;ASSIGNOR:CORDIS NEUROVASCULAR, INC.;REEL/FRAME:23032/233
Jul 8, 2009FPAYFee payment
Year of fee payment: 4
Jun 7, 2002ASAssignment
Owner name: CORDIS NEUROVASCULAR, INC., FLORIDA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HIESHIMA, GRANT;LULO, ROBERT;REEL/FRAME:012972/0366;SIGNING DATES FROM 20020524 TO 20020531